As stunt double for Robert Redford, it is Gilbert you see jumping off the high cliff into the river in the now famous scene from Butch Cassidy and the Sundance Kid, along with Howard Curtis, who was the stunt double for Paul Newman in this scene.
Doubled for Robert Redford, Lee Majors, and Gene Wilder.
His wife is from a family of stuntmen, being the daughter of Joe Yrigoyen.